Check valve



D@ 13, 1927i'v L. BECK ET AL n CHECK -VALYE Filed April 18. 1927 je@ 2 7 *fk ,Jr J 6 9 /0 /3 /2 ll /f l /4 l ,L A

In @entorJ' Patented Dec. 13, 1927.'

UNITED-1;.srATEs CHECK VALVE.

y Application led April 18, 1927.y Serial No. 184,707.

The Vpresent invention relates to al check valve designed particularly for use '1n pipe lines connected with the pump used 1n deep koil-Wells and the like.

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One of the important objects of the invention lies in the provision of a check valve which `is sure in its operation,eiiicient and reliable, easy to assemble and disassemble, and otherwise Well adapted to the purpose for Which it is designed.

lVith the above and numerous other objects in view as will appear as the description proceeds, the invention'resides in cer tain novel features of construction, and in the combinationand arragement of parts as will be hereinafter more fully described and claimed.

In the drawing :i

Figure 1 is a longitudinal section throughl the check valve embodying the features of our invention,

Figures 2 and 3 are transverse sections therethrough taken substantially'on the lines 2-2 and 3 3 of Figure 1.

Referring to the drawing in detail, it will be seen that the numeral 5 denotes the main casing section and the numeral 6 the auxiliary casing section Which is threadedly engaged with the section 5 as at 7. An outlet nipple 8 is formed at the end of the section 5 for connection with the pipe line. A nipple 9 is extended and threaded through an opening 10 in the section 6 coaxial With the outlet nipple 8. A valve seat 11 is threaded in the interior end of the nipple 9. A lskeleton pipe 12 having slots 13 is threaded over the inner end-of thev nipple 9. A funnel 14 has a cylindrical extension 15 threaded interiorly in the end of the skeleton pipe 12 and holds the ball valve 16 therein. The outer end of the funnel 14 is held in the casing section 5 by lugs 17 radiating inwardly therefrom to hold the larger end of the funnel in spaced relation to the interior of the section 5 and co-axially disposed in relation to the outlet nipple 8. Y

In assembling this check` alve the nipple 9 is first threaded in the opening 10 and then the valve 11 is threaded in the inner end ofv the nipple 9. The skeleton pipe 12 isthreaded over. the outer portion of the inner end of thenipple 9 and the ball 16 is inserted thereln and then the funnel 14 is en aged in rthe skeleton pipe 12 as described. tion 5 is threaded in engagement with section 6 and causes the lugs 17 to engage Athe larger end of the funnel 14.

The oil flows from left to right in Figure 1, entering the nip le 9 and unseating the valve ball 16 from tie seat 11 so that the oil may flow freely through the slots 13 and he secthroughA the. casing section 5 out through e the outlet nipple 8. When the pressure stroke of the pump is completed, the back pressure through the nipple 8 Will enter the funnel 14 and force the valve 16 onto the seat 11. This funnel 14 Vis important in assuring quick and positive action of the check valve.

It is thought that the construction, operation, and advantages of this invention will noW be quite apparent to those skilled in this art Without a more detailed description thereof. The present embodiment of the invention has been disclosed in detail merely bv Way of example since in actualpractice ,itu attains the features and advantages enumerated as desirable in the statement of the `invention and the above description. It will be apparent that changes in the 4details of construction, and in the combinationand arrangement of parts may be resorted to Without departing from the spirit and scope of the vinvention as hereinafter claimed or sacrificing any of its advantages. v

Having thus described our invention, what We claim as new isz- 1. Afcheok valve structure of the class described comprising a pair of detachable sections one of which has an opening, a nipple ythreaded in the opening, a valve seat threaded inthe inner end of the nipple, a skeleton pipe having slots threaded over the inner end of the nipple, a funnel threaded in the skeleton pipe, a ball in the skeleton pipe for association With the seat, the other section being providedvvith an outlet nipple.

2. A check valve structure of the class described comprising a pair of detachable sections one of Which has an opening, a nipple threaded in the opening a valve seat threaded in the inner end of the nipple, a skeleton pipe having slots threaded over the inner spaced relation to the interior of said other end of the nipple, n funnel threaded in the section.

skeleton pipe, a bal] in the skeleton pipe for In testimony whereof we ax our signa- 1 association with the seat, the other section tures.

l being provided with an outlet nipple, logs projecting iuwlrdly from other section ,LESTER C. BECK.

or engaging the funnel to hold `the same in .J ESSE S. 

